Lennard-Jones Parameters for B3LYP/CHARMM27 QM/MM Modeling of Nucleic Acid Bases.

@article{Pentikinen2009LennardJonesPF,
  title={Lennard-Jones Parameters for B3LYP/CHARMM27 QM/MM Modeling of Nucleic Acid Bases.},
  author={Ulla Pentik{\"a}inen and Katherine E Shaw and Kittusamy Senthilkumar and Christopher J. Woods and Adrian J. Mulholland},
  journal={Journal of chemical theory and computation},
  year={2009},
  volume={5 2},
  pages={396-410}
}
Combined quantum mechanics/molecular mechanics (QM/MM) methods allow computations on chemical events in large molecular systems. Here, we have tested the suitability of the standard CHARMM27 forcefield Lennard-Jones van der Waals (vdW) parameters for the treatment of nucleic acid bases in QM/MM calculations at the B3LYP/6-311+G(d,p)-CHARMM27 level. Alternative parameters were also tested by comparing the QM/MM hydrogen bond lengths and interaction energies with full QM [B3LYP/6-311+G(d,p… CONTINUE READING

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